Speed Pro Hellfire Piston Rings 4.600" Bore File Fit 0.043 x 0.043 x 3/16" Thick - Standard Tension SP850BK 7" touch screen and digital

7" touch screen and digital gauges are available for ultimate control and vehicle monitoring

self-learning EFI systems feature an all new ECU pre-loaded with 80 dyno-tuned calibrations that support popular engine configurations up to 800 HP

this Cloyes' patented technology will save you hours of valuable set-up time

launch retard and RPM rev limiters from its predecessor

hobby stock and bomber applications

Speed Pro Hellfire Piston Rings 4.600" Bore File Fit 0.043 x 0.043 x 3/16" Thick - Standard Tension SP850BK 7" touch screen and digitalTop ring is an uncoated special hardened and tempered high strength material that withstands high heat a pressure without collapsing. Standard tension oil ring to provide maximum oil control Ensures dependable performance and superior service life Application specific design to ensure a perfect fit and correct operation for unsurpassed quality that you can trustFrom pistons to engine bearing components, Speed Pro offers an array of performance engine